Aren't the midterm election results fully priced in by now? Why are people predicting a stock market drop after the election?

Sites like 538 project a 80% chance the Democrats take the house, and a 80% chance the Republicans keep the Senate. Seems like this is fully baked into the markets. Why, then, do some people predict that the market will go down after election day?

Submitted November 04, 2018 at 11:20AM by Power80770M https://ift.tt/2DlX8K8